Yes it’s possible to rollback to the previous version ;
- Hold your Homey upside down for 1 minute to enter recovery mode.
- When Homey enters the recovery, please go to setup.athom.com with a laptop or desktop.
- Select your preferred language, Press the ALT button to make continue in browser visible and click “continue in browser”, shown in grey.
- While entering your WiFi information hold your ALT button and keep holding it until you get the “Download full update” option.
- When this process is done, please press the button “keep your data”, and let Homey finish the setup process.